Japan shows off futuristic 'railgun' at defense expo
As Japan's biggest defense exhibition kicked off this week, visitors got a close-up look at a model of its futuristic "railgun" that its makers hope will be able…
Tomas Kauer - News Moderator 
As Japan's biggest defense exhibition kicked off this week, visitors got a close-up look at a model of its futuristic "railgun" that its makers hope will be able…
